Machine for forming bushing-plugs for rolls of paper.



0. 0. mm). MAGHINE FOR FORMING BUSHING PLUGS FOR ROLLS OF PAPER.

5, 1909. sums-sum 1.-

APPLIUATION FILED JULY 39, 1907. 908,467. Patented Jan.

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ATTORNEY 1n: NORRIS PETERS co, w4sumarou, D. c

P 0. 0. mm). MACHINE FOR FORMING BUSHING PLUGS POB. ROLLS OF PAPER.

' APPLIUATION FILED JULY 29, 1907.

Patented Jan. 5, 1909.

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MACHINE FOR FORMING BUSHING PLUGS POE ROLLS OF PAPER.

APPLICATION rum) JULY 29. 1967.

Patented Jan. 5, 1909.

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INVENTUR U 5.2a [L Juflfl ATTORNEY 1n: NORRIS PETERS cm, uusumcmn, L, c,

OSCAR O. JUDD, OF MENA'SHA, W ISGONSIN.

MACHINE FOR FORMING BUSHING-PLUGS F01; tones or Pia Pan.

Specification of Letters Patent.

Patented Jan. 5, 19091 Application filed. July 29, 1907. Serial No.386,077.

To all whom it may concern:

Be it known that I, OSCAR 0. June, a citizen of the United States,residing at Menasha, in the county of WVinnebago and State of Wisconsin,have invented a new and useful Improvement in Machines for FormingBushing-Plugs for Rolls of Paper, of which the following is aspecification.

My invention relates to improvements in machines for forming bushingplugs for rolls of paper, in which a cutting off saw I operates inconjunction with a conveyer and a boring and turning lathe; and theobjects of my improvement are, first, to combine all of the mechanismfor cutting off the blocks from which the bushing plugs are formed,conveying them to the boring and turning lathe, boring the blocks andturning them to a tapering form, and delivering them in a finishedcondition to a suitable receptacle; second, to combine all of themechanism for performing the foregoing operations in one automaticallyoperated machine; and third, to lessen the cost of manufacture of saidplugs by combining into one automatically operated machine, requiringbut a single attendant, allof the mechanism for the cutting off of theblock, delivering them to the lathe, boring them, turning and deliveringthe same in a finished condition into a suitable receptacle. I attainthese objects by the mechanism illustrated in the accompanying drawing,in which,-

Figure 1 is a plan View of the mechanism, the turning knife beingremoved from 1 its stock and the finished plug removing device beingbroken off for showing a cubical block from which the plugs are formedin position for being turned, the cams for operating the several parts,the shaft, its journal boxes, &c., which are under the lathe frame,being omitted. Fig. 2 is a transverse vertical section of the turninglathe upon the line a, a, of Fig. 1, as it appears in looking toward theleft, the cubical block above mentioned being removed. Fig. 3 showsdetails of the turning knife stock andt-he links and lever by which theknife is moved up to the work, in three separate parts. Fig. 4 is a sideelevation of the boring and turning lathe, the knife stock and finishedplug removing device being partly broken away, and a turned plug heldbetween the lathe centers. Fig. 5 is a side elevation of the upper partof the boring and turning lathe, and showing a cubical block as it isbeing received between the lathe centers from theblock conveyer theupper part of the conveye'rbeing broken away. Fig. 6 is averticalsection of the upper part of the head block of the lathe,longitudinally thereof. Fig. 7 is a vertical section of the upper partof the tail block of the lathe, longitudinally thereof. Fig. 8 is an endelevation of the sawing machine frame and boring and turning lathe, Fig.9 is a vertical section of the lathe upon the line Z), 6, of Fig. 4, theupper vertical part of the conveyer being broken away. Fig. 10 is anelevation showing the smallest end of the turned plug, having thecentral bore. Figs. 6, 7 and 10, are upon a larger scale than theothers.

Similar numerals and letters indicate like parts in the several views.

The material from which the plugs are formed, is of any suitable wood,and is delivered to the cutting off saw in square sticks 1, of asuflicient transverse dimension, for the formation of bushing plugs ofthe required diameter, and for convenience, the sticks are arranged in apile upon the'fixed saw table 2, as in Fig. l, at the left of the saw 3,the saw being driven by the pulley 4, upon its arbor 5, from anyavailable source of power. The operator stands at 6, in front of theoscillatory saw table 7, and has only to slide the stick 1, along saidtable and up to the gage 8, as the table is at the rearward extremity ofits oscillation. This table is oscillated upon the rod 9, in a forwarddirection, by means of the cam wheel 10, upon the shaft 11, the cam asit revolves engaging the upright of the table 7, said shaft being drivenby the belt 12, running from a pulley on the lathe shaft to thepulley13, upon the camshaft. The return movement of the oscillating table isproduced by means of the weight 14, and rope 15, the rope running overthe pulley 16 on the fixed saw table. As the cubical blocks 17, are cutfrom the stick 1, they are pushed, one after another, toward, and into,the conveyer, 18, and when they arrive at the curve 18 of the conveyer,fall into the vertical part, 18", for delivery to the lathe centers. Theoscillating saw table operated by a cam or other mechanism, may bedispensed with in some cases, and the table be operated by the work--man. v

The lathe frame consists of side pieces 19, ends 20, legs 21, and girths22; the head Eli block 23 and tail block 24 being mounted upon the sidepieces 19. in the head block bearings 23*, is jotu'naled the livespindle 25, winch is driven with a belt upon the pulley 26, fixed tospindle, from an overhead pulley, (not shown), the left hand bearinghaving an end shoulder, 27, which serves as a thrust bearing for thespindle. The live spindle has a bore 28, its entire length, its

inside, or right hand end being counterbored to a larger diameter, andthe outside of the spindle considerably enlarged. A rod 29, is arrangedto slide along the small bore, while a centering plug 30 of a largerdiameter than the hole to be bored in the article to be turned, is fixedto the right hand end of the rod 29, and can slide in and partly out ofthe counterbore 31 and is free to revolve within the spindle. The rod 29is extended toward the left and passes through both the thrust bearingand end support 32, and is provided between the support 32 and left handjournal box 23, with two collars, 33, which are fixed to the rod, andwith a collar 34 loose thereon between them, the latter being engaged bymeans of pins 35 with the cam lever 36, said cam lever being fulcrumedupon the rod 36, which is arranged through the lathe side pieces. Theend of the plug 30 may be provided with a center spur 30 and the end ofthe live spindle should have spurs 25 for engaging with the block to beturned.

A main line shaft 37 is arranged for revolution in journal boxes 38,upon girths 22 of the lathe frame, said shaft being provided with a gearwheel 39, which is engaged with a pinion 40, upon the shaft 41, theouter end of said shaft being provided with a pulley 42, by which it maybe driven by the overhead arranged shaft which drives the live spindleof the lathe. Secured upon the shaft 37, is a cam wheel 43, providedwith a diagonally arranged circumferential groove 44, with which thelower end of the cam lever engages and slides the rod 29 and plug 30,longitudinally.

The cam wheel 43 has its groove 44, so arranged around it, that at eachrevolution of the wheel, the rod 29 and plug 30, will slide to the rightfor centering the block to be turned, as is shown in Fig. 5, and thenslide immediately to the left, as is shown in Fig. 6, for allowing theauger bit to pass entirely through the block without interfering withthe sliding plug, and so remaining at the left until after the block hasbeen bored, turned and is ready to be removed from between the lathecenters.

Mounted to slide upon ways 45 of the tailv block 24, is an auger bitshaft holder, 46,

the pin 48. Extending upward from the holder 46 is an arm 49, from whichtwo straps 50, which are secured to the arm with bolt 51, extendrearwardly to, and are connected with the upper end of the lever 52, bymeans of a bolt 51, the lever being fulcrumed upon the rod 54, andhaving its lower end engaged with the groove 55, of the cam wheel 56. Near the rear, or right hand end of the shaft 47, a collar 57 isslidingly mounted, and is held from turning around thereon by the spline57 and near its forward enda collar 58, having a tubular sleeve integralwith it, is mounted to slide easily. This sleeve at its free end 58servesvas the tail center of the lathe, the end of the plug 30, beingthe live center, and on which two centers the block to be turned isfirst received from the conveyer, as it drops from the sleeve 59, aswill be further explained. The collars 57 and 58 the latter being acontinuation of 59 are connected together by means of straps 60, whichare secured to the collars with bolts 60 and 61. From the bolts 61,screw rods 62, turn buckles 63, and screw rods 64, extend to the rightof the tail block, the outer ends of the rods 64 being connected by thebolt 65 with the upper end of the lever 66, whose lower end is engagedwith the groove 67 of the cam wheel 68, the lever being fulcrumed uponthe rod 69.

The rods 62 and 64 are provided with right and left threads for engagingwith the turn buckles, for the purpose of regulating to a fraction, theforward movement of the tail center, or sleeve 59, and thereby producingthe proper degree of pressure upon the block to be turned, for holdingit tightly against the end of the live spindle, as in Figs. 1 and 4. V

The conveyer is supported a little above the sleeve 59, upon brackets70, (see Fig. 9), part of the brackets on the front of the lathe inFigs. 4 and 5 being omitted. The blocks 17, as they fall to the loweropen end of the conveyer, are held up by the sleeve 59 until the turningof the cam wheel 56, causes the sleeve to move to the right from underthe conveyer, when said block will fall upon the supporting fingers 71,said fingers being mounted in the cross bar 72, and made verticallyadjustable by means of nuts 73 on the threaded stem 74 of the fingers.By raising and lowering said fingers, the block can be verticallycentered with accuracy, and they can be centered transversely of thelathe by adjusting the conveyer upon the supporting brackets. The toolfor turning the plugs comprises a knife 75, which is bolted to the toolstock 76, with bolt 77, the tool stock consisting of the part to whichthe knife is bolted and a depending arm 78, which parts are pivotedintermediate their ends with bolts 79 to the bed piece 80, said bedpiece being bolted with bolt 81 to the bed piece of the head and tailblocks of the lathe. From the lower end of the arm 78, a link 82 extendsnearly horizontally to the vertical lever 83, the lever being pivotedwith bolt 8% at one end to the arm 78, and at the other end with thebolt 85, to the lever 83, and said lever being fulcrumed intermediateits ends upon the bolt 86 in the bracket arm 87, the lower end of saidlever being provided with a roller 88 for engaging with the cam wheel89, the revolutions of the cam wheel causing the knife to be advanced tothe block to be turned. In Fig. 2 the knife and its mechanism and itsoperating cam are shown as having just completed the turning of theplug. Fig. 4 shows in dotted lines the necessary curves in the lever 8-3for reaching the cam wheel 89. The link 82 is provided with right andleft hand threads 90 and 90 which engage the pivoted nuts 91, at eachend of it, for

the purpose of adjusting the degree of forward throw of the tool stockand thereby governing the diameter of the turned plug. The knife isquickly drawn away from the plug after it is turned, by means of aspring 92, it being connected to the tool stock in such a manner, as bya cord 9%, as to draw the knife away from the plug, as is shown in Figs.1, 2 and 8. The pulley 93 upon the shaft 37, is for the purpose oftransmitting power by means of the belt 12 to the cam shaft 11.

It should be observed that the pulley 93 is of greater diameter than thepulley 13 on the cam shaft 11, which difference in their diameter is forthe purpose of supplying a few more blocks for the conveyer in a giventime, than the lathe is arranged to turn, so as to allow for time lostby the operator in providing his supply of sticks upon the saw table tobe cut into blocks to be turned.

The difiere'nt parts are operated in the following order :-The operatorsupplying the saw with sticks 1, and feeding them up to the gage asdescribed, the blocks are fed into the conveyer, and will fall into thevertical part of it, the lower block being arrested by and upon thesleeve 59, (while a block is being turned,) and as the sleeve recedes tothe right after said block is turned, will fall upon the fingers 71. Theplug 30, then advancing to the block, and the sleeve 59 advancing at thesame instant, the block will be held between the plug and sleeve, thesleeve continuing to advance while the plug recedes, the block will beclamped between the sleeve and-end of the live spindle in which thespurs 25 are fixed. As the plug recedes, the auger bit is advancedthrough the sleeve and the block is bored. The knife stock is then actedupon by its operating cam and the block is turned, the auger bit at thesame time receding while the sleeve commences its backward movement,whereby the turned plug 17 having the bore 17", is permitted to fallfrom its position on the spurs of the live spindle; but to make itsremoval positive and provide a clear field for the next block, a plugremover is applied to the rear side of the lathe, consisting of thecurved lever 94, having a finger 95, for throwing the turned plugdownward from between the lathe centers, said lever being pivoted on thebolt 96 in the bracket arm 97 and a vertically arranged rod 98 which ispivoted on the bolt 99, to the outer end of the lever extends downwardtherefrom to the outer end of the angle lever 100, and said angle leveris pivoted on the bolt 101 in the bracket arm 102, which arm dependsfrom the lathe frame. The Vertical arm of the angle lever 100 is engagedby the cam wheel 1.04 upon the shaft 37. The action of the cam wheel10%, as its cam engages the angle lever end 100, is to throw the finger95, downward and remove the turned plug from between the lathe centersthe instant its turn-' ing is completed.

The grooves in the cam wheels 43, 56 and 68 and the forms of cams 89 and104, are to be such and be so arranged in position upon the shaft 37, asto produce the necessary movements in their required order.

In order to assist the removal of the article being turned from thespurs of the live spindle, at the instant that the article is finished,the plug 30, which during the boring and turning is withdrawn into thelive spindle, is caused to slide quickly to the right, just suflicientto push the article being turned, from off of the spurs 25, so that theturned article is free to fall. This I do by forming a short curve, 105,in the groove 44. of the cam wheel 43, which curve causes the lever 36,to act upon the rod 29 and throw the plug 30, or end of the rod if therod takes the place of the plug, just out of the end of the livespindle, and push the article turned from off of the spurs.

The automatically operating saw table with the conveyer for supplyingblocks to a lathe are not claimed broadly to be new, but in combinationwith the increased movements of the table to and from the saw over therevolutions of the lathe cam shaft which revolves once for each blockturned, they are believed to be so.

Having described my invention, what I claim and desire to secure byLetters Patent, 1s,

In an automatically operating mechanism for boring and turning articlesof wood from a cubical block, the combination of the followinginstrumentalities acting in the order named, a lathe, a main drivingshaft herefor, a plurality of camsthereon, grooves having curves intheir courses around some of said cams for operating various mechanismof the lathe, as herein recited, in order as to time relative to eachother, means for revolving said shaft, a tubular live spindle mounted inthe lathe head blocks and means for revolving the spindle independentlyof said main driving shaft, a plurality of spurs upon the inner end ofsaid spindle, a loosely revoluble centering plug reciprocatedindependently of the movements of the tubular live spindle, the tailcentering sleeve and the auger bit, and having a movement toward andfrom the block to be turned twice during the turning of each block, aspur centrally of its inner end, a non-rotating tubular tail centeringsleeve in axial line with said live spindle arranged for movement towardand from said spindle, a conveyer into which blocks can be fed mountedabove the path of reciprocation of the inner end of said tail centeringsleeve, said tail centering sleeve moving backward from under the blockin the lower end of said conveyer, a suitable support under saidconveyer for receiving a block to be turned as it drops from said tailcentering sleeve after said backward movement, said centering plughaving a forward movement for centering a block between it and said tailcentering sleeve and removing the block from said support, saidcentering plug and tail centering sleeve having a forward movement witha block between them toward the live spindle until the block is engagedby the spurs thereof, the forward movement of said centering plugcontinuing until it is within the bore of said spindle and is clear ofsaid block, a non-rotating auger bit arranged for reciprocation withinsaid tail centering sleeve, and having a movement toward and through theblock independently of the movement of the tail centering sleeve, aknife arranged to be advanced transversely of the spindle up to theblock for turning the same, and to return the auger bit, and after it,the tail centering sleeve, moving to withdraw them from the turnedblock, said centering plug then advancing toward the turned block forreleasing said block from engagement with the spurs of the live spindle,and a lever arranged to'throw the finished block clownward at theinstant of its release from said spurs.

OSCAR O. JUDD. Witnesses:

C. A. ROBINSON, LOUIS ELLINGER.

